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SashulF [63]
3 years ago
10

If 3x - y = 12 what is the value of 8x/2y

Mathematics
1 answer:
Marat540 [252]3 years ago
6 0
Your answer is 2^12 check out this video that explains it 
https://www.youtube.com/watch?v=ZV430MtO12s
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The base of an open rectangular box is of length(2x+5)cm and width xcm.
Tju [1.3M]

Step-by-step explanation:

For solving, use quadratic formula

8 0
3 years ago
Complete this sentence. If volume remains the same while the mass of a substance ________, the density of the substance will____
Natasha_Volkova [10]
Since the
density =mass /volume
if volume is constant we can rewrite the density equation as
volume=mass / density
since volume is just a constant
c*density=mass
where c is some constant that denotes the constant volume
mass and density will be proportional to each other or in other words will be have exactly in the same way if one increase the other will increase if one decreases the other will decrease if one stays constant the other will stay constant
only the fourth choice satisfies the proportionality condition so it must be the correct choice
4 0
3 years ago
A 48 gram sample of a substance that’s used for drug research has a k value of 0.1325
Lyrx [107]

Using an exponential function, it is found that the half-life of the substance is of 5.23 units of time.

<h3>What is the exponential function for the amount of a substance?</h3>

The function is given by:

A(t) = A(0)e^{-kt}

In which:

  • A(0) is the initial value.
  • k is the exponential decay rate.

The parameters are given by:

A(0) = 48,  k = 0.1325.

Hence the equation is:

A(t) = 48e^{-0.1325t}

The half-life is the amount of time for which A(t) = 0.5A(0) = 24, hence:

A(t) = 48e^{-0.1325t}

24 = 48e^{-0.1325t}

e^{-0.1325t} = 0.5

\ln{e^{-0.1325t}} = \ln{0.5}

0.1325t = -\ln{0.5}

t = -\frac{\ln{0.5}}{0.1325}

t = 5.23.

More can be learned about exponential functions at brainly.com/question/25537936

#SPJ1

3 0
2 years ago
A retailer buys a coat in bulk at a unit price of $45. The coat is marked up to 28% to sell in the store. What is the price of t
inessss [21]
The answer is $57.60

(The original price) 45+ 12.60 (28% of 45) = 57.60
6 0
3 years ago
10% of 1200 is what number?<br> Step by step please
sdas [7]
120
Step by step explanation:
Divide 1200 by 10
That equals 120
You can back check by multiplying 120 by 10
5 0
2 years ago
Read 2 more answers
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